About the Number

21212928

21212927 ← → 21212929

2進数表記:1010000111010111100000000

漢数字表記:二千百二十一万二千九百二十八

素因数分解:

2 8 × 3 5 × 11 1 × 31 1

素因数の和:73
約数の個数: 216
約数和(自身を含む): 71425536
約数和(自身を除く): 50212608

約数列:
[1, 2, 3, 4, 6, 8, 9, 11, 12, 16, 18, 22, 24, 27, 31, 32, 33, 36, 44, 48, 54, 62, 64, 66, 72, 81, 88, 93, 96, 99, 108, 124, 128, 132, 144, 162, 176, 186, 192, 198, 216, 243, 248, 256, 264, 279, 288, 297, 324, 341, 352, 372, 384, 396, 432, 486, 496, 528, 558, 576, 594, 648, 682, 704, 744, 768, 792, 837, 864, 891, 972, 992, 1023, 1056, 1116, 1152, 1188, 1296, 1364, 1408, 1488, 1584, 1674, 1728, 1782, 1944, 1984, 2046, 2112, 2232, 2304, 2376, 2511, 2592, 2673, 2728, 2816, 2976, 3069, 3168, 3348, 3456, 3564, 3888, 3968, 4092, 4224, 4464, 4752, 5022, 5184, 5346, 5456, 5952, 6138, 6336, 6696, 6912, 7128, 7533, 7776, 7936, 8184, 8448, 8928, 9207, 9504, 10044, 10368, 10692, 10912, 11904, 12276, 12672, 13392, 14256, 15066, 15552, 16368, 17856, 18414, 19008, 20088, 20736, 21384, 21824, 23808, 24552, 25344, 26784, 27621, 28512, 30132, 31104, 32736, 35712, 36828, 38016, 40176, 42768, 43648, 49104, 53568, 55242, 57024, 60264, 62208, 65472, 71424, 73656, 76032, 80352, 82863, 85536, 87296, 98208, 107136, 110484, 114048, 120528, 130944, 147312, 160704, 165726, 171072, 196416, 214272, 220968, 228096, 241056, 261888, 294624, 321408, 331452, 342144, 392832, 441936, 482112, 589248, 642816, 662904, 684288, 785664, 883872, 964224, 1178496, 1325808, 1767744, 1928448, 2356992, 2651616, 3535488, 5303232, 7070976, 10606464, 21212928]

約数ペア:
[(1, 21212928), (2, 10606464), (3, 7070976), (4, 5303232), (6, 3535488), (8, 2651616), (9, 2356992), (11, 1928448), (12, 1767744), (16, 1325808), (18, 1178496), (22, 964224), (24, 883872), (27, 785664), (31, 684288), (32, 662904), (33, 642816), (36, 589248), (44, 482112), (48, 441936), (54, 392832), (62, 342144), (64, 331452), (66, 321408), (72, 294624), (81, 261888), (88, 241056), (93, 228096), (96, 220968), (99, 214272), (108, 196416), (124, 171072), (128, 165726), (132, 160704), (144, 147312), (162, 130944), (176, 120528), (186, 114048), (192, 110484), (198, 107136), (216, 98208), (243, 87296), (248, 85536), (256, 82863), (264, 80352), (279, 76032), (288, 73656), (297, 71424), (324, 65472), (341, 62208), (352, 60264), (372, 57024), (384, 55242), (396, 53568), (432, 49104), (486, 43648), (496, 42768), (528, 40176), (558, 38016), (576, 36828), (594, 35712), (648, 32736), (682, 31104), (704, 30132), (744, 28512), (768, 27621), (792, 26784), (837, 25344), (864, 24552), (891, 23808), (972, 21824), (992, 21384), (1023, 20736), (1056, 20088), (1116, 19008), (1152, 18414), (1188, 17856), (1296, 16368), (1364, 15552), (1408, 15066), (1488, 14256), (1584, 13392), (1674, 12672), (1728, 12276), (1782, 11904), (1944, 10912), (1984, 10692), (2046, 10368), (2112, 10044), (2232, 9504), (2304, 9207), (2376, 8928), (2511, 8448), (2592, 8184), (2673, 7936), (2728, 7776), (2816, 7533), (2976, 7128), (3069, 6912), (3168, 6696), (3348, 6336), (3456, 6138), (3564, 5952), (3888, 5456), (3968, 5346), (4092, 5184), (4224, 5022), (4464, 4752)]

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